Using IEEE802.15.4e TSCH in an IoT context: Overview, Problem Statement and Goals
draft-ietf-6tisch-tsch-05

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Document Type Active Internet-Draft (6tisch WG)
Authors Thomas Watteyne  , Maria Palattella  , Luigi Grieco 
Last updated 2015-03-05 (latest revision 2015-01-08)
Replaces draft-watteyne-6tisch-tsch
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6TiSCH                                                  T. Watteyne, Ed.
Internet-Draft                                         Linear Technology
Intended status: Informational                            MR. Palattella
Expires: July 12, 2015                          University of Luxembourg
                                                              LA. Grieco
                                                     Politecnico di Bari
                                                         January 8, 2015

              Using IEEE802.15.4e TSCH in an IoT context:
                 Overview, Problem Statement and Goals
                       draft-ietf-6tisch-tsch-05

Abstract

   This document describes the environment, problem statement, and goals
   for using the IEEE802.15.4e TSCH MAC protocol in the context of LLNs.
   The set of goals enumerated in this document form an initial set
   only.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on July 12, 2015.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of
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   to this document.  Code Components extracted from this document must

Watteyne, et al.          Expires July 12, 2015                 [Page 1]
Internet-Draft                 6tisch-tsch                  January 2015

   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  TSCH in the LLN Context . . . . . . . . . . . . . . . . . . .   4
   4.  Problems and Goals  . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  Network Formation . . . . . . . . . . . . . . . . . . . .   7
     4.2.  Network Maintenance . . . . . . . . . . . . . . . . . . .   7
     4.3.  Multi-Hop Topology  . . . . . . . . . . . . . . . . . . .   7
     4.4.  Routing and Timing Parents  . . . . . . . . . . . . . . .   8
     4.5.  Resource Management . . . . . . . . . . . . . . . . . . .   8
     4.6.  Dataflow Control  . . . . . . . . . . . . . . . . . . . .   8
     4.7.  Deterministic Behavior  . . . . . . . . . . . . . . . . .   8
     4.8.  Scheduling Mechanisms . . . . . . . . . . . . . . . . . .   9
     4.9.  Secure Communication  . . . . . . . . . . . . . . . . . .   9
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  10
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  10
     8.3.  External Informative References . . . . . . . . . . . . .  12
   Appendix A.  TSCH Protocol Highlights . . . . . . . . . . . . . .  13
     A.1.  Timeslots . . . . . . . . . . . . . . . . . . . . . . . .  13
     A.2.  Slotframes  . . . . . . . . . . . . . . . . . . . . . . .  14
     A.3.  Node TSCH Schedule  . . . . . . . . . . . . . . . . . . .  14
     A.4.  Cells and Bundles . . . . . . . . . . . . . . . . . . . .  14
     A.5.  Dedicated vs. Shared Cells  . . . . . . . . . . . . . . .  15
     A.6.  Absolute Slot Number  . . . . . . . . . . . . . . . . . .  15
     A.7.  Channel Hopping . . . . . . . . . . . . . . . . . . . . .  16
     A.8.  Time Synchronization  . . . . . . . . . . . . . . . . . .  16
     A.9.  Power Consumption . . . . . . . . . . . . . . . . . . . .  17
     A.10. Network TSCH Schedule . . . . . . . . . . . . . . . . . .  17
     A.11. Join Process  . . . . . . . . . . . . . . . . . . . . . .  18
     A.12. Information Elements  . . . . . . . . . . . . . . . . . .  18
     A.13. Extensibility . . . . . . . . . . . . . . . . . . . . . .  18
   Appendix B.  TSCH Gotchas . . . . . . . . . . . . . . . . . . . .  19
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